Liquidmetal Technologies Inc (LQMT)

[Metal Jockey]

From the article, just speculation.

”The rest of the tech in here is equally impressive: a precision case (conceivably made with liquidmetal, but definitely still at least partially machined), a well-gasketed depth sensor (we assume), and plenty of antennas (check out the pass-throughs on the case). The case is a really incredible part—we’d love to see the crazy complex manufacturing process.”